2Abadie, A. and G. W. Imbens, 2006, " Large Sample Properties of Matching Estimators for Average Treatment Effects," Econometrica , 74,235-267.
3Aghion P. and P. Howitt, 1997, Endogenous Growth Theory, Cambridge MA: MIT Press.
4Alesina, A., R. Di Tella and R. MaeCulloch, 2004, "Inequality and Happiness: are Europeans and Americans Different?" Journal of Public Economics, 88 (9) :2009-2042.
5Andersson, P., 2008, "Happiness and Health : Well-being among the Self-employed, "The Journal ofSocio-Economics, 37 ( 1 ) : 213-236.
6Berglann, H., E. R. Moen, K. Roed and J. F. Skogstrom, 2011, "Entrepreneurship: Origins and retums,"Labour Eco- nomics,18 (2) :180-193.
7Beugelsdijk, S. and N. Noorderhaven, 2004, "Entrepreneurial Attitude and Economic Growth: A Cross-section of 54 regions, "The Annals of Regional Science, 38(2) :199-218.
8Blanchflower, D. G., A. Oswald and A. Stutzer, 2001, "Latent Entreprenearship Across Nations," European Economic Review,45 (4) :680-691.
9Blanchflower, D. G., 2000, "Self-employment in OECD Countries," Labour Economics,7 (5) :471-505.
10Deng, Q., B. Gustafsson and S. Li, 2013, "Intergenerational Income Persistence in Urban China," Review oflneome and Wealth, 59 ( 3 ) :416-436.